Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
Approximately one-third of the population can't snap their fingers!
91
One in 500 humans has one blue eye and one brown eye.
145
You will experience the billionth second of your life when you are 31 years old.
21
On average, men's noses are 10% larger than women's.
12
